TaxNo: 3775Family Muensteroceratidae
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: | Muensteroceratidae |
| Qualifier: | fa |
| Author: |
Librovitch 1957,p.263
|
| Lower Boundary: |
UAR Walls Ferry Fm. base, 356 million years
|
| Upper Boundary: |
RUS Nm2b1--Nm2b2(S.krest.--P.alpharhip.), 316.8 million years
|